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    <title>A Line chart demonstrating the crosshairs snap option</title>
    
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    <meta name="description" content="The crosshairs has a snap option to 'lock' it to points - this demonstrates it" />
     
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    <h1>A Line chart demonstrating  the crosshairs snap option</h1>
    
    <p>
        This line chart demonstrates how you can extract the Line charts dataset and index from the variables set on the canvas tag
        by RGraph.
    </p>

    <canvas id="cvs" width="600" height="400">[No canvas support]</canvas>
    
    <script>
        $(document).ready(function ()
        {
            var line = new RGraph.Line({
                id: 'cvs',
                data: [
                       [61.5,84.2,74.1,95.3],
                       [1,25,14,85],
                      ],
                options: {
                    ymax: 100,
                    xmax: 365,
                    labels: ['Jan','Feb','Mar','Apr'],
                    xaxispos: 'center',
                    gutter: {
                        bottom: 45
                    },
                    hmargin: 5,
                    linewidth: 3,
                    shadow: true,
                    crosshairs: {
                        self: true,
                        snap: true
                    }
                }
            }).on('crosshairs', function (obj)
            {
                document.getElementById("dataset").value =  obj.canvas.__crosshairs_snap_dataset__;
                document.getElementById("point").value =  obj.canvas.__crosshairs_snap_point__;
            }).draw()
        })
    </script>
    
    <p />
    
    Dataset:<br />
    <input id="dataset" type="text" /><br /><br />

    Point:<br />
    <input id="point" type="text" />

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        <a href="./">&laquo; Back</a>
    </p>

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